9974161 has 4 divisors (see below), whose sum is σ = 9987300. Its totient is φ = 9961024.

The previous prime is 9974147. The next prime is 9974177. The reversal of 9974161 is 1614799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1614799 = 733 ⋅2203.

It can be written as a sum of positive squares in 2 ways, for example, as 3441025 + 6533136 = 1855^2 + 2556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9974161 is a prime.

It is a Duffinian number.

9974161 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9974161.

It is not an unprimeable number, because it can be changed into a prime (9974101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5356 + ... + 6973.

It is an arithmetic number, because the mean of its divisors is an integer number (2496825).

Almost surely, 2^9974161 is an apocalyptic number.

It is an amenable number.

9974161 is a deficient number, since it is larger than the sum of its proper divisors (13139).

9974161 is a wasteful number, since it uses less digits than its factorization.

9974161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13138.

The product of its digits is 13608, while the sum is 37.

The square root of 9974161 is about 3158.1895129963. The cubic root of 9974161 is about 215.2577474894.

The spelling of 9974161 in words is "nine million, nine hundred seventy-four thousand, one hundred sixty-one".